The latest release of Kiwitrees is now available from the downloads page at kiwitrees.net. This is a maintenance release of mainly bug fixes and a few small improvements.
For details of the changes visit the Change list page where they are all listed with a couple of images of screen changes where relevant.
No special requirements for this upgrade, but remind yourself of the process at the upgrades page, just to be sure.
All kiwitrees hosted client sites will be automatically upgraded in the next few days. You do not need to do anything your self, although you will find it useful to review the Change list to understand what may be different on your site after the upgrade.